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CCC includes a command line utility that allows you to start, stop, and monitor the progress of specific CCC backup tasks. The utility is located inside of the CCC application bundle. To get basic usage instructions, invoke the utility without arguments in the Terminal application, e.g.:

Note: When backing up an APFS-formatted volume, CCC will copy files from a read-only snapshot of the source volume. The subject of this article is not applicable in those cases.

For improved detachability, macOS will unmount any non-internal volumes that are attached to the system when you log out. So, for example, if you log out of your computer while a USB or Thunderbolt hard drive enclosure is attached, you can detach those hard drive enclosures from the system without having to manually unmount them first. This is a good thing — it would be annoying if you had to log back in to your system just to eject a drive. The downside of this, though, is that if you have a CCC backup task that runs when no user is logged in, the destination volume may be unavailable.

If you upgraded your Mac to macOS Mojave and have decided to downgrade for one reason or another, the procedure is usually pretty straightforward. Fusion volumes, however, introduce a complication. Upon upgrading to Mojave, a Fusion volume will be converted from HFS+ to APFS. If you want to downgrade to High Sierra (or any earlier OS), you must reformat that Fusion volume as HFS+. Because APFS Fusion volumes are not handled gracefully by High Sierra, however, the procedure is a bit tedious.

At its core, Carbon Copy Cloner is a product that is designed to make bootable backups of your Mac's operating system. In order for CCC to be able to make copies of system files, CCC needs to have the privilege of copying files that can't be read nor written by just any user – CCC requires elevated privileges to copy macOS system files. Likewise, CCC is often tasked with copying the data associated with multiple users. macOS prevents you from accessing files that belong to other users.

CCC is volledig gekwalificeerd voor gebruik met door FileVault beschermde volumes (HFS+ en APFS). CCC biedt advies over het inschakelen van codering in het Schijfcentrum.

Codering inschakelen op een volume met een macOS-installatie (of die er een zal hebben)

Als u een opstartbare, gecodeerde reservekopie wilt maken, voert u deze stappen uit:

Een taak toevoegen

U kunt taken op verschillende manieren toevoegen. Als u een nieuwe taak met standaardinstellingen wilt aanmaken, klikt u op het symbool + boven in de tabel Taken of kiest u Nieuwe taak in het menu Archief van CCC. Of klik op de knop Nieuwe taak in de knoppenbalk van CCC. U kunt ook een bestaande taak dupliceren: selecteer de taak in de lijst met taken en kies vervolgens Dupliceer in het menu Archief van CCC of klik rechts op de taak en kies de optie om de taak te dupliceren.

De inhoud van dit artikel is niet relevant als ondersteuning voor momentopnamen is ingeschakeld op een APFS-doelvolume. Raadpleeg Ondersteuning voor momentopnamen inschakelen en een bewaarbeleid voor momentopnamen instellen voor meer informatie over het bewaren van SafetyNet-momentopnamen.

CCC determines whether your destination volume will be bootable and indicates any configuration concerns in the "Cloning Coach" window. If you see a yellow warning icon in the Task Plan header, you can click on that icon to see these concerns. CCC will also present these concerns to you the first time that you configure a backup task to any particular destination volume.

Rather than requiring you to enter admin credentials every time you want to run a task or make changes to a task, CCC only requires users with administrative privileges to authenticate once when CCC is initially installed. While this configuration is easier to use, there are situations where this configuration is not appropriate. If you leave your system unattended with an admin user logged in, someone with physical access to your system can modify or run your CCC backup tasks.